# Toddler Bed Conversion Kit for Beau M3899 \| live price, prepared checkout ## Built for shopping agents: what RoboTrunk does for every product We asked shopping agents, including Meta's Muse first-hand, what they need from a store. This is what they asked for, and what we have built. RoboTrunk is working through its catalogue, so a step may not be done for this one yet. Where a step is done per product, the line ends with what is done for this product. - **Deep research:** We read the maker's manual, independent reviews, video review transcripts and the store's own page, and publish each finding with its source and the date read. `check_product` returns them with a source for each. *This product:* 22 checked facts, research depth trimmed read, checked 2026-10-21T20:22:42.344Z, in the [evidence pack](/agent/evidence/modernnursery-com--davinci-toddler-bed-conversion-kit-for-beau). - **Receipts:** Every published fact has a receipt showing its source quote. `check_product` and `get_product` return the checked facts that have one. *This product:* each checked fact listed below has one; the source quotes are in the [evidence pack](/agent/evidence/modernnursery-com--davinci-toddler-bed-conversion-kit-for-beau). - **Safety:** `check_product` asks the product-safety regulators live (US CPSC, NHTSA and FDA, Health Canada, the UK's OPSS, Australia's ACCC) whether a recall names a product, listed here or not, and flags a match with its notice; a recall never blocks the buyer. *This product:* this page holds no recall result for it yet; `check_product` asks the regulators now. - **Recall watch:** `watch_recalls` tells the buyer if a product bought here is recalled later. - **Second-hand listings:** `check_listing` runs the same recall check on a second-hand listing someone found, and adds what the listing leaves out and the price new. - **The real price:** The full price to the buyer's country, with shipping and tax, each part quoted from the store's policy or, where a part is not settled, what the total depends on: `check_product` and `search_catalog` take the buyer's country and postcode. *This product:* this store's price was read from its catalogue at 2026-10-21T19:31:31.510Z. - **A checkout that finishes:** RoboTrunk lists only stores whose agent checkout it has verified. `create_checkout` prepares the order at the store; `complete_checkout` returns a link to the store's own checkout. The checkout can be finished in either of two ways: the person taps the link in their own browser, or their agent opens it and completes the checkout. RoboTrunk checks the store's total against a budget ceiling before it issues the link. Payment always happens on the store's own page, and RoboTrunk never holds the money. No store pays for placement; RoboTrunk may earn a commission from some stores via their affiliate programs. - **Markdown copy:** Every page has a Markdown copy: [this page's copy](https://robotrunk.com/products/ucp/modernnursery-com/7735989370980.md). - **Photos and ratings:** Search results carry the product photo and, where the store's own page publishes one, its rating (`search_catalog`). - **Fit answers:** `check_fit` answers whether a listing fits a car, pram or bottle, with the exact quote from the store's page, or says it is not known. - **Back-in-stock watches:** `watch_back_in_stock` starts a watch on a listing the store shows as sold out; `get_back_in_stock_watch` shows when it is back in stock. - **Maker's manual:** `ask_product_manual` answers from the maker's manual with the exact passage and page, or says the manual does not cover it. - **Tools and guide:** Every tool and its description is at https://robotrunk.com/mcp; the guide is at [/agents\.md](/agents.md). - **Research from other stores:** Coming soon: reading other stores' listings of the same product as research sources. Sold and shipped by modernnursery\.com, modernnursery.com; payment happens on the store's own checkout. Brand: DaVinci ## Variants - Crimson: USD 79.00; in stock. Variant id: `gid://shopify/ProductVariant/43871466881124` - Seller: modernnursery\.com. Price: USD 79\.00. Stock: in stock. Variant: Crimson, variant id `gid://shopify/ProductVariant/43871466881124`. shipping not recorded; confirmed at merchant checkout. returns not recorded; confirmed at merchant checkout. [Public evidence](https://modern-nursery-test-store.myshopify.com/products/davinci-toddler-bed-conversion-kit-for-beau). [Comparison page](/compare/want/crib-conversion-rails-that-meet-recognized-safety-standards). [Get ready to buy from modernnursery\.com: prepare checkout](/checkout-prepare?merchant=modernnursery-com&product_id=gid%3A%2F%2Fshopify%2FProduct%2F7735989370980&variant_id=gid%3A%2F%2Fshopify%2FProductVariant%2F43871466881124). - Walnut: USD 89.00; in stock. Variant id: `gid://shopify/ProductVariant/54242417738094` - Seller: modernnursery\.com. Price: USD 89\.00. Stock: in stock. Variant: Walnut, variant id `gid://shopify/ProductVariant/54242417738094`. shipping not recorded; confirmed at merchant checkout. returns not recorded; confirmed at merchant checkout. [Public evidence](https://modern-nursery-test-store.myshopify.com/products/davinci-toddler-bed-conversion-kit-for-beau). [Comparison page](/compare/want/crib-conversion-rails-that-meet-recognized-safety-standards). [Get ready to buy from modernnursery\.com: prepare checkout](/checkout-prepare?merchant=modernnursery-com&product_id=gid%3A%2F%2Fshopify%2FProduct%2F7735989370980&variant_id=gid%3A%2F%2Fshopify%2FProductVariant%2F54242417738094). ## Checked facts Each fact below was checked against the source it cites before it was published. Each carries that source's link and the time RoboTrunk read it. 22 checked facts, checked 2026-10-21T20:22:42.344Z. Research depth: trimmed read. Deep read: the store's own data and 7 outside pages \(the store's own product page; maker page; manual; blog; regulator recall search \(CPSC \(United States\)\); regulator recall search \(Health Canada\)\), each read in full by RoboTrunk and trimmed to its main content, then written up and checked\. Facts from the maker or a manual quote the page word for word; what real users report is summarised with a link to the page read\. Recall status was checked directly with CPSC \(United States\), Health Canada: The CPSC recall search returned no records for DaVinci / M3899\. Health Canada returned four DaVinci records, but the titles shown are for Bailey bassinets and DaVinci brand cribs, not this M3899 conversion kit; no recall for this exact model was found\. - what it is: The kit converts a full\-size crib into a toddler bed and is listed as compatible with the Beau 3\-in\-1 Convertible Crib, which is sold separately\.. Source: (listing), read 2026-10-21T19:31:31.510Z. - category: The structured data places the product in Crib Conversion Kits\.. Source: (guide), read 2026-10-21T20:18:09.500Z. - compatibility chart: The maker's conversion\-kit chart pairs the Beau 3\-in\-1 Convertible Crib model M23901 with toddler bed kit M3899\.. Source: (guide), read 2026-10-21T20:18:14.216Z. - manuals: The maker says instruction manuals for all current products are found on its manuals page\.. Source: (manual), read 2026-10-21T20:18:15.821Z. - recall search: A CPSC recall search for DaVinci / M3899 returned no recall records\.. Source: (guide), read 2026-10-21T20:18:20.698Z. - compatibility: The only crib model named as compatible is the Beau 3\-in\-1 Convertible Crib\.. Source: (listing), read 2026-10-21T19:31:31.510Z. - age: The structured data gives the age as Toddler\.. Source: (guide), read 2026-10-21T20:18:09.500Z. - purpose: The maker's conversion\-kit page lists matching toddler, twin\-size and full\-size conversion kits for its cribs\.. Source: (guide), read 2026-10-21T20:18:14.216Z. - rail manuals: If the toddler rail came with the crib, the maker directs buyers to the crib's own manual\.. Source: (manual), read 2026-10-21T20:18:15.821Z. - materials: The kit is made of 100% sustainable New Zealand pine wood\.. Source: (listing), read 2026-10-21T19:31:31.510Z. - certifications: The structured data lists Eco\-Friendly, Sustainably Made, No Added Formaldehyde, No Known Harmful Phthalates and Fire Retardant Free certifications or claims\.. Source: (guide), read 2026-10-21T20:18:09.500Z. - missing manual: The maker says to contact it if a product or older manual is not listed\.. Source: (manual), read 2026-10-21T20:18:15.821Z. - dimensions: The listed dimensions are 52 inches by 1 inch by 13\.5 inches\.. Source: (listing), read 2026-10-21T19:31:31.510Z. - Crimson variant: Crimson is one store variant\.. Source: (guide), read 2026-10-21T20:18:09.500Z. - weight: The listed weight is 5 lbs\.. Source: (listing), read 2026-10-21T19:31:31.510Z. - Crimson GTIN: The Crimson variant's structured data gives GTIN\-12 048517871041\.. Source: (guide), read 2026-10-21T20:18:09.500Z. - assembly: Assembly is required\.. Source: (listing), read 2026-10-21T19:31:31.510Z. - Walnut variant: Walnut is one store variant\.. Source: (guide), read 2026-10-21T20:18:09.500Z. - safety testing: The store says the kit is lead and phthalate safe and annually tested by a third party\.. Source: (listing), read 2026-10-21T19:31:31.510Z. - Walnut GTIN: The Walnut variant's structured data gives GTIN\-12 048517891728\.. Source: (guide), read 2026-10-21T20:18:09.500Z. - safety standards: The store says it meets ASTM International and U\.S\. CPSC safety standards\.. Source: (listing), read 2026-10-21T19:31:31.510Z. - color sample: The store offers a material sample so buyers can check color against their room\.. Source: (guide), read 2026-10-21T20:18:09.500Z. The full evidence pack, with every citation, source and gap: [evidence pack](/agent/evidence/modernnursery-com--davinci-toddler-bed-conversion-kit-for-beau) ## Questions we researched but could not confirm Every fact above is cited. To find them we read the store listing, the maker's page, the manual, blogs and the recall records of CPSC \(United States\) and Health Canada and searched for regulator recall notices, owner reviews, owner forums and video reviews. We also chased the questions below across those sources and found no reliable answer, so you know exactly where the evidence ends and never have to guess. - What tools are required to attach the rail? - Are all mounting screws and hardware included in the box? - What length are the mounting screws? - Can the rail be mounted on either side of the bed? - What are the maximum child height and weight for the toddler\-bed configuration? - Is there a warranty, and how long does it last? - How should the rail be cleaned or cared for? - Does the painted finish chip, peel, or rub off with use? - Does the kit include touch\-up paint? - What specific ASTM standard number does it meet? - Does the rail leave a gap at the headboard or footboard? - Which color variants are currently offered for M3899? To buy this through RoboTrunk, pass merchant `modernnursery-com`, product_id `gid://shopify/Product/7735989370980` and one variant_id from the list above. Product image of Toddler Bed Conversion Kit for Beau M3899, supplied by modernnursery\.com: This product on modernnursery.com: Retrieved 2026-10-21T19:31:31.510Z from This page is published by RoboTrunk, a store built for shopping agents. The store named on this page sells the product and ships it. RoboTrunk is not the seller and never holds the money. Buying works in one path. RoboTrunk's tools prepare a checkout at that store, then hand back a short-lived link. The person approves the total; once RoboTrunk has checked the store's total against it, the person is given the checkout link to tap in their own browser, or, if the person prefers and gives permission, their agent may open the link and finish there, and payment always happens on the store's own checkout page. RoboTrunk never takes the payment or sees a card. 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